Request an invite

Columvi: which tox species, and why?

glofitamab · CD20 x CD3
Species
Cynomolgus monkey only
“The cynomolgus monkey is a relevant species for toxicology studies based on glofitamab binding to CD20 and CD3 on cynomolgus monkey B- and T-cells.”
✓ VerifiedFDA multi-discipline review, p. 40Source ↗
Why that species
Comparable binding to human and monkey B- and T-cells (EC50 4.3/2.3 nM B, 21.1/13.2 nM T); no rodent, dog, minipig cross-reactivity
“Glofitamab bound to human and monkey B-cells with EC50 values of 4.3 and 2.3 nM respectively and bound to human and monkey T-cells with EC50 values of 21.1 and 13.2 nM respectively. This justified use of the cynomolgus monkey for general toxicology studies.”
✓ VerifiedFDA multi-discipline review, p. 44Source ↗
Surrogate molecule
No surrogate; clinical molecule tested in monkey (obinutuzumab pretreatment used in some studies)
“The cynomolgus monkey is a relevant species for toxicology studies based on glofitamab binding to CD20 and CD3 on cynomolgus monkey B- and T-cells.”
✓ VerifiedFDA multi-discipline review, p. 40Source ↗

Same question, other bispecifics

Bizengri

zenocutuzumab · HER2 x HER3
Cynomolgus monkey only

Blincyto

blinatumomab · CD19 x CD3
Chimpanzee (only relevant species, limited non-terminal studies) plus mouse with murine surrogate

Elrexfio

elranatamab · BCMA x CD3
Cynomolgus monkey only

Epkinly

epcoritamab · CD20 x CD3
Cynomolgus monkey only

Hemlibra

emicizumab · FIXa x FX
Cynomolgus monkey only

Imdelltra

tarlatamab · DLL3 x CD3
Cynomolgus monkey (pivotal); mouse surrogate muS757 for EFD and 1-month study

Kimmtrak

tebentafusp · CD3 x gp100 (TCR fusion)
No relevant species; in vitro human cell/tissue assays only

Korjuny

catumaxomab · EpCAM x CD3
No relevant species; limited single-dose mouse, rat, one cynomolgus; BiLu mouse surrogate

Lunsumio

mosunetuzumab · CD20 x CD3
Cynomolgus monkey only

Lynozyfic

linvoseltamab · BCMA x CD3
Cynomolgus monkey only

Ordspono

odronextamab · CD20 x CD3
Cynomolgus monkey only

Removab

catumaxomab · EpCAM x CD3
No relevant species; in vitro human cells plus mouse surrogate (BiLu); limited single-dose rodent/monkey

Rybrevant

amivantamab · EGFR x MET
Cynomolgus monkey only

Talvey

talquetamab · GPRC5D x CD3
Cynomolgus monkey only (tool molecule for pivotal tox); no rodent tox

Tecvayli

teclistamab · BCMA x CD3
Cynomolgus monkey only (rabbit used for SC local tolerance only)

Vabysmo

faricimab · VEGF-A x Ang-2
Cynomolgus monkey only for pivotal tox (rabbit dropped after early studies)

Ziihera

zanidatamab · HER2 x HER2 (biparatopic)
Cynomolgus monkey only

Summary across all 18 bispecifics →